Matter

Genetic Code to Computer Code

Tiny spirals of DNA can encode more than just the color of your eyes or the shape of your nose. Using self-assembling DNA wires, Duke engineer Chris Dwyer is building optical computing chips so compact that you could cram 5,000 movies on a single CD-sized disc. The chromophores (red dots) absorb light and transform it into packets of energy called excitons. Then these excitons leap from chromophore to chromophore in a specific pattern.

Nano Mosh Pit

A biomaterials lab led by Gabriel Lopez has devised a way to grow uniformly sized particles of silicon gel  that can be sorted by soundwaves.  In a liquid chamber with a standing acoustic wave, most particles will gather at the nodes where the wave is standing still. But the new particles are actually attracted to the antinodes where the highest point of the wave is constantly shifting up and down.

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